9. (B)
Question type: Inference
We’re looking for an answer that can be proven true based on the information given.
(B) is definitively true based on the information given. If a word is in the middle of a title, it cannot be capitalized if it is an article or conjunction with fewer than five letters. Therefore, if a word is capitalized, it means it could not have been an article or conjunction with fewer than five letters.
(A) is a very attractive choice, but ignores the possibility of a preposition or conjunction with more than five words in the middle of sentence.
(C) is not true according the argument.
(D) ignores several of the constraints.
(E) infers beyond the argument _ "any" text.